Filling stop motion for looms



' sept; 27, 1927. 1,643,931

D. E. SKEDGELL FILLING STOP MOTION FOR .LOOMS Filed oct. 17, 1925 W1 T/NEssEs INVENTOR.-

6.4@ Dmjd E/Sre@e,

f, r ,f//fl 'appendages at 11.

Patented Sept. 27, 192,7.

DAVID E. sKEnG-EL'L;. onMILLvI-LLE, NEW JERSEY, as srenon'ro MILLV'ILLE MANU FAGTURING COMPANY', or MrLLv-rLLE, new inns y JERSEY.

A. CORPORATION or rimane sfros Morton' son :ooi/rs.

Application led Octfober 17, 19215. Serial lilo; 69,98.

This 4invenjion relates to stop motions em-V pioye'din vcone'eenen with '190mg to automatically eiieet, stoppage. in vthe absence of the ll'ingwd'ue to breakage, or to enliaustion of t'ieibobbii'i inthe shuttle. Such a device' embodies' detector in the* forni oit' a pivoted forli, which, so long jas itl 'is engaged' by the l ofV each beat of the lfay under A Y ir'O', conditions 'of the loom, it the We vi `y g to proceed, but'which tv'lien 'not' so `engaged, inl the absence of the filling, automatically causes the belt shipy per to' be tripped Yto 'immediately stop the leoni. Nov(T obviously -tvih 'devices of this 'Kindes' ordinarily constructed", abnormall ob'- structions, for example, yan accumulation of llint (customarily 'referred to as fly yy'y'fo'i'ildv act in thesa'nie Way on the detector and preventv stoppage of the loom, notwithstanding absence of the lilling thread'.

It vis tory/ard.' overcoming the contingency just referred to, that the 'present 'improvement isl directed'. notlier Words, the object of my invention is to Vprovide means capable ofcausing automatic stoppage ofthe loom inthe presence of any abnormal obstruction likely to interfiere'`r with proper `f'u'nction'ing"of the detector, and thereby p revent the lloom from continuing vin operation uf'ithfbroken viil'ling, vor' van empty shuttle and causing imperfections such' as thin places 'inthe Weaye'. y l

iVit-'hreference to the drawings, Fig. is a "ial plan viev of a loom conveniently e vbodying the' lli'ng step 4motion of' my rivnfli; 'and Fig'. II is'v av -fragt'n'ent'ar'y detail section taken as indicated by the arrows IIe-II in Fig. I. 'y 1 For' convenience oi illustration, I have 'herein shown. my 'invention as applied: 'to

an automatic loom of the Northrop type,

Vlwhereof the lay is comprehensively indicated at '10, andl the breast beam With its y Secured` to tli'ejbreast beam 11 'at one'end thereof, is a lateral guide 12 for a 'slide 13 `which remains sta]- tiona'ry the position of "Figs l and II during normaly operation of the loom". At itsouter end ,the slidel 13 has operative connection With the belt shipper tripping mechanism-that is to say, engages a' tripping finger 14 that is pivoted at 1'5 and reaches over A to the belt shipper arm 16, (or clutch arm 'as the' case' be), the latter being normally heldv lockedinactive position against the action oi asprin'g (notfsho n1), by av lateral notch i? oi' a motion-limiting slot 18, provided in' 'an extension 19 of the .breast beam 11. At its inner end, the slide 13 pivota'lly supports' a detector 20 having 'the form of a forkwitlr depending .proj 21, and a laterallyextending yokelikejt'ail piece 22. `This detector 2O cooperates in-Aa Well known manner Withl g'ri'c Set on the lay 10 in an interval' between the reed 24 and 'the shuttle box 25,'assh`orvn in- The motion for actuating the belt' shippertrlpbing mechanism is derived from an W tuator 26 that is continuously vibrated or oscillated by a suitable'c'amonthe' earn shaft (not shown) of the loom in the customary manner. The upper end of thisv actuator 2G projects into a' longitudinal opening inthe slide 13 Vto impart reciprocatory movement to pivo'taily attached member 27 that rests on La-Web Q8 er;tending transversely across the bottom of the slide open-ing, l-is shown in Fig. il, the member 227, instead of' being a single bool: isth'e usualE case Witli'- stop motions of the Northrop type, comprises tivo hook-like arms 29, 30, Whereoi1 the former is straight and horizontal, While the latter is curved to overhang the rst menrioned one and separated Jfrom it by an intervening Vbight 31. The 'arms 29, SO,l furthermore, are respectively recessed as atlQ,l 33, thereby affording'notches in different planes for en# gagi'ng with tli'eyokeLlile tail 220i the de'- 'tector 20, as hereinafter ful-ly explained.

l The operation ofmy filling detector 'ifs as iollovvs: Assuming the l'ooml tov be in normal operation andthe actuator l26 constantlyfvi'- braing to reciprocate the member 27 rela*- t-ive to the slide 13, it Will be apparent upon the forward-motion of tlielay 10- withv iilling lying across the grid 23, that the detector 2 0v Will be swung to the full line position of Fig. II to maintain' the tail piece 22 above the vlevel of the recess 32 in the lower or horizontalV arm .29ct 'the hooked member 27. In theabsence of the filling, however, the detector 20 will not be. affected asv above noted", .vithtlieA consequence that its tail piece 22 Willvbe engagedy in the notch 32' of the 'lower arm 29 of member 27,- as shown inl dotted' lines in Fig. II,- and, as said member moves forward, the'slide 13 will slide 13 is thereupon imparted directly to lll the tripper arm 14, thereby causing the belt shipper 16 to be displaced from locking engagement with the notch 17 and released to action of its spring for immediate stoppage of the loom. 1n the event of the presence of a more bulky obstruction than the filling before the -grid 23, such for example, as an accumulation of' lint or fly, the detector 20 upon approach of the lay .10, will obviously be swung to a greater degree than before andI its tai-l piece lifted to the plane of the'upper hook arm 30 of the member 27 as shown in dot-and-dash lines in 11', and thus engaged by the notch with a result that the loom is stopped through the same interposed instrumentalities.andin precisely thesame manner as previously explained.

. n By my invention, 1 have thus provided for automatic stoppage of the loom not only in the absence of the filling before the grid, but, also in the presence of abnormal obstructions of 'the character referred to, which, with stop motions as usually designed,

C would influence the detector to keep the loom running notwithstanding absence of the filling. .y

1t is to be particularly ,observed that my invention necessitates no change whatever either in the construction of a typical Northrop loom or in its stop motion except for the substitution ,of a very simple element,

'namely the double hook member 27 in place of the characteristic single hook usually provided; nor will it interfere in any way with the operation of the filling replenishing mechanism with which such looms are usually equipped.

Having thus described my invention, 1 claim:

1. A fillingstop motion for looms, comprising a normally stationary slide operatively connected to the belt shipper tripping mechanism, a filling detector having depending prongs and a lateral tail piece carried by the slide, and a member' embody- 'ing superposed hook arms moving` constantly relative to the slide during operation of the loom, said hook arms being respectively capable of engaging the detector tail piece at different levels incidentalto positioning of the latter occasioned by 'absence `of the filling, or by presence of abnormal obstructions other than the filling to effect automatic stoppage of the loom.

2. A filling'stop motion for looms, comprising a normally stationary slide `operatively connected to the belt shipper tripping mechanism, a filling detector having depending prongs and a lateral tail piece carried by the slide, and a member embodying superposed arms with an intervening bight moving constantly relative to the slide during operation of the loom, said arms having notches for engaging the detector tail piece tively connected to the belt shipper trip ping mechanism, a filling detector having depending prongs and a yoke-like tail piece pivotcd on the slide, and a member embodying straight and overshot arms with an intervening bight moving constantly relative to the slide during theoperation'ofthe' loom, said arms aording hooks positioned at different levels for engaging the tail piece .of the detector when the latter assumes distinctive angular positions as occasioned by reason ofabsence of the filling, or by presence of abnormal obstructions other than thev filling, toeffect automatic stoppage of thel loom.

A filling stop motion for looms, comprising a normally vstationary slide operatively connected to the'loelt shipper 'tripping mechanism, a filling detector having depending` prongs and a yoke-like tail piece carried by the slide, and a member reciprocating constantly relative to a slide during the operation of the loom, said member embodying a straight arm and an overshot curved arm affording hooks for engaging the tail piece of the detector when the latter assumes different angular positions as occasioned by absence of the filling, or by presence of abnormal obstructions other than lthe filling', to effect automatic stoppage of the loom.r i

5. A pivotal member for co-operation with the filling detector of a stop motion for looms, comprising a unit embodying hooked carms one of which is directly over another, said arms being recessed to afford hooks in different planes for engaging the tail piece of the filling detector, to effect automatic stoppage of theloom, in positions vassumed vdue to absence of the filling or to the presence of abnormal obstructions otherV than the filling.

6. A pivotal member for co-operati'on with the filling detector of a stop motionV for looms, comprisingv a unit embodying two hooked arms whereof one is straight andthe other curved directly thereover with an intervening bight, said arms being recessed to afford hooks in different planes for engaging the tail piece of the filling detector, to effect automatic stoppage of the loom,in positions assumed due to absence of the filling or to the presence .of abnormal obstructions other than the filling. Y

1n testimony whereof,1 have hereunto signed my name at Millville, N. ll.,y this 12 day of October, 1925.,

DAVID E. SKEDGELL. 

